Motor-cycle.



J. E. ALLEN.

' MOTOR CYCLE. APPLIOATION FILED 811F123, 1908.

Patented Nov. 30, 1909.

ATTORNEYS WITNESSES UNITED STATES PATENT OFFICE.

JOHN E. ALLEN, OF TRENTON, NEW JERSEY.

MOTOR-CYCLE.

Specification of Letters Patent.

Patented Nov. 30, 1909.

Application filed September 23, 1908. Serial No. 454,330.'

- and jar, incident to riding over rough places,

to a minimum, the construction of the frame permitting the use of longand strong elliptical springs, and bringing the riders seat as low downas possible.

The invention consists of novel features and parts and combinations ofthe same, which will be more fully described hereinafter and thenpointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improve ment, the motor and theconnection between the motor and drive wheel being omitted; Fig. 2 is aninverted plan view of the same; Fig. 3 is an enlarged cross section ofthe same on the line 3-3 of Fig. 1; and Fig. 4 is a similar view of thesame on the line H of Fig. 1.

The main frame A of the motor cycle consists of two parallel sides, eachformed: of longitudinally-extending bars A, A arranged one above theother, and connected with each other by an arched bar A, as plainlyindicated in Fig. 1, the forward ends of the bars A, A of each side ofthe main frame A being connected by lower and upper braces A"; A withthe steering head A, in which is mounted to turn the springpressed forkB, carrying the front or steering wheel C in the usual manner. The rearends of the bars A, A of the two sides of the main frame A are rigidlyconnected with each other by cross bars A A and a cross bar A connectsthe tops of the arch-shaped bars A with each other, as indicated in Fig.3. The rear wheel D is arranged. between the sides of the main frame Aand is approximately concentric to the arch-shaped bars A and the endsof the axle E of the rear wheel D are supported on clips F secured tothe middle of longitudinally-extending fiat elliptical springs G, of oneor more leaves, and pivotally connected at their. front ends to pivots Hheld on the side bars A,, the rear ends of the leaf springs G being heldon pivots H attached to the archedbars A (see Figs. 1 and 4:). By thearrangement described, the wheel D is springmounted on the main frame bythe use of the elliptical springs G, which are exceed- .irlgly strongand durable and reduce the vibrations to a minimum, thereby insuringeasy riding of the motor cycle overrough or uneven places.

The clips F are provided with rubbing plates F (see Figs. 2 and 3)incontact with rubbing irons or bearings I secured to the side bars A,so that the springs Gare guided in their up and down swinging movement,and at the same time are held against lateral movement, thus insuringtrue running of the rear or drive Wheel D.-

To the clips F are secured the terminals of the members of the rear forkJ, extending upwardly and provided with a shank J extending into abearing K held on the top cross bar A as plainly indicated in Figs. 1and Thus by the use of the rear fork J mounted in the manner described,further lateral movement of the springs G and consequently of the wheelD is prevented, to

aid in keeping the wheel D in proper run- 7 ning eonditlon.

By having the main frame A provided with the arched orsegmentally-shaped bars A the seat L for the rider can be arranged lowdown, as plainly indicated in Fig. 1, the seat being for this purposemounted on brackets 1 secured to the front portion of the segmental orarch-shaped bars A By constructing the main frame A in the mannerdescribed, an exceedingly strong and durable frame is provided, notliable to break or easily get out of order.

It is understood that the bars forming the members of the frame A arepreferably tubular, as indicated in Figs. 3 and 4c.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A motor cycle provided with a frame, a rear wheel,longitudinally-extending semielliptical springs secured at their ends tothe said frame, clips at the middle of the the sald rear wheel, and arear fork having its members connected with the said clips, the framehaving a bearing with which the shank ofthe fork engages, the said clipshaving ,a sliding engagement with the said frame.

3. A motor cycle provided with a frame, a rear wheel,longitudinally-extending semielliptical springs secured at their ends tothe said frame, clips at the middle of the said springs'forconnectionwith the axle of the said rear wheel, and a rear fork having its membersconnected with the said clips,

the frame having a bearing with which the shank of the fork engages, thesaid'clips fitting, with their outer faces, slidingly against the innerfaces of the bearings on the sides of the frame.

4:. A motor cycle frame, coni'prisin sides, each formed of a pair oflon'gitufinallyextending side bars located one above the other, and anarched bar having its terminals secured to the said longitudinal bars ofthe corresponding side bars, cross bars connecting the said'longitudinalbars and the said arched bars with each other, a steering head, lower;braces, and upper braces, the said braces connecting the said side barswith the said steering. head.

In testimony whereof I have signed my name to this-specification in thepresence of two subscribing witnesses.

JOHN E. ALLEN. Witnesses TH'no. G. Hos'rmz, JOHN P. DAvIs.

